Development of Shipyard Simulation System based on Petri Nets

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Other Title
  • ペトリネットを利用した工場シミュレータの構築
  • ペトリネット オ リヨウ シタ コウジョウ シミュレータ ノ コウチク ダイ3ポウ ジョウバン モデル オ ドウニュウ シタ コウジョウ シミュレータ
  • ペトリ ネット オ リヨウシタ ゾウセン コウジョウ シミュレータ ノ コウチ
  • ペトリネットを利用した造船工場シミュレータの構築
  • ペトリネットを利用した工場シミュレータの構築 : 第3報:定盤モデルを導入した工場シミュレーター
  • 3rd Report : Factory Simulator introduced the concept of the Job-Shop Floor
  • 第3報 : 定盤モデルを導入した工場シミュレータ

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Abstract

For production activities very large information on process planning and scheduling is necessary. There are various restrictions in the factory. Most efficient production schedule must be planned in consideration of those restrictions. However information handled by production scheduling is huge and it is very difficult to plan the optimal schedule. Therefore, skill is needed for production scheduling.<BR>The authors have been studying on a factory simulator that bases on petri nets and published two papers already. This paper is the 3rd report of the authors' research and presents the enhanced concept of the previous simulator. In the authors' previous papers, the working resources and operations are modeled as petri nets, and the shipyard simulator is implemented by using of petri nets. In this research, authors propose the petri nets that are including the restriction of working resources in shipyard.<BR>We aimed to implement the factory simulation system of the shipbuilding more realistic than ever. We have already implemented the production scheduling support system in the shipyard that is part of our research in CIM for shipbuilding. In order to use this result of our research more, we implement the system that can evaluate the effectiveness of generated production schedule by the factory simulator. Time is freely controlled in the computer and we implement the shipyard simulation system that can simulate the process of the production activity in a shipyard.

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